{"files"=>["https://ndownloader.figshare.com/files/461093", "https://ndownloader.figshare.com/files/461102", "https://ndownloader.figshare.com/files/461114", "https://ndownloader.figshare.com/files/461127"], "description"=>"<div><p>A persistent controversy surrounds the flightless island hen of Tristan da Cunha, <em>Gallinula nesiotis</em>. Some believe that it became extinct by the end of the 19th century. Others suppose that it still inhabits Tristan. There is no consensus about <em>Gallinula comeri</em>, the name introduced for the flightless moorhen from the nearby island of Gough. On the basis of DNA sequencing of both recently collected and historical material, we conclude that <em>G. nesiotis</em> and <em>G. comeri</em> are different taxa, that <em>G. nesiotis</em> indeed became extinct, and that <em>G. comeri</em> now inhabits both islands. This study confirms that among gallinules seemingly radical adaptations (such as the loss of flight) can readily evolve in parallel on different islands, while conspicuous changes in other morphological characters fail to occur.</p></div>", "links"=>[], "tags"=>["dna", "elucidates", "flightless", "hens", "tristan", "da", "cunha"], "article_id"=>150868, "categories"=>["Molecular Biology", "Evolutionary Biology"], "users"=>["Dick S. J. Groenenberg", "Albert J. Beintema", "René W. R. J. Dekker", "Edmund Gittenberger"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0001835.s001", "https://dx.doi.org/10.1371/journal.pone.0001835.s002", "https://dx.doi.org/10.1371/journal.pone.0001835.s003", "https://dx.doi.org/10.1371/journal.pone.0001835.s004"], "stats"=>{"downloads"=>3, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Ancient_DNA_Elucidates_the_Controversy_about_the_Flightless_Island_Hens_Gallinula_sp_of_Tristan_da_Cunha/150868", "title"=>"Ancient DNA Elucidates the Controversy about the Flightless Island Hens (<em>Gallinula</em> sp.) of Tristan da Cunha", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2008-03-19 00:14:28"}